2598e9f2ce
Updated the full suite of manual pages for the procps_pids_* functions. The only one missing is procps_pids_get which may not be required.
257 lines
9.6 KiB
Groff
257 lines
9.6 KiB
Groff
.\" t
|
|
.\" (C) Copyright 2016-2017 Craig Small <csmall@enc.com.au>
|
|
.\"
|
|
.\" %%%LICENSE_START(LGPL_2.1+)
|
|
.\" This manual is free software; you can redistribute it and/or
|
|
.\" modify it under the terms of the GNU Lesser General Public
|
|
.\" License as published by the Free Software Foundation; either
|
|
.\" version 2.1 of the License, or (at your option) any later version.
|
|
.\"
|
|
.\" This manual is distributed in the hope that it will be useful,
|
|
.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
.\" Lesser General Public License for more details.
|
|
.\"
|
|
.\" You should have received a copy of the GNU Lesser General Public
|
|
.\" License along with this library; if not, write to the Free Software
|
|
.\" Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
.\" %%%LICENSE_END
|
|
.\"
|
|
.TH LIBPROC 3 2016-01-05 "libproc-2"
|
|
.\" Please adjust this date whenever revising the manpage.
|
|
.\"
|
|
.SH NAME
|
|
libproc \-
|
|
Miscelleanous information about libproc
|
|
|
|
.SH SYNOPSIS
|
|
.B #include <proc/procps.h>
|
|
|
|
Link with \fI\-lprocps\fR.
|
|
|
|
.SH DESCRIPTION
|
|
This manual describes some of the anciallary information about the
|
|
libproc library.
|
|
|
|
.SS PID FETCH TYPE
|
|
The enum \fIpids_fetch_type\fR is used by the functions \fBprocps_pids_get\fR
|
|
and \fB procps_pids_reap\fR to determine if the only the process information
|
|
should be collected or the thread information as well.
|
|
.TS
|
|
lB l l.
|
|
PIDS_FETCH_TASKS_ONLY Only collect task (process) information
|
|
PIDS_FETCH_THREADS_TOO Collect both task and thread information
|
|
.TE
|
|
|
|
.SS PIDS COUNT
|
|
The \fBpids_count\fR structure shows some overall count of
|
|
processes in various states. Note that if you use
|
|
.BR procps_pids_select (3)
|
|
then the counts are for the matching processes only.
|
|
The structure is a series of integers and have the following
|
|
members.
|
|
|
|
The following information is found in the structure:
|
|
.PP
|
|
.in +4n
|
|
.nf
|
|
struct pids_counts {
|
|
int total; /* total number of processes */
|
|
int running; /* processes running in R state */
|
|
int sleeping; /* processes sleeping in S or D state */
|
|
int stopped; /* processes stopped in T state */
|
|
int zombied; /* zombie processes in Z state */
|
|
};
|
|
.fi
|
|
.in
|
|
|
|
.SS PIDS FETCH
|
|
This is the structure returned by \fBprocps_pids_reap\fR(3) and
|
|
\fBprocps_pids_select\fR(3) and contains a \fBPIDS STACK\fR and
|
|
some count information.
|
|
.PP
|
|
.in +4n
|
|
.nf
|
|
struct pids_fetch {
|
|
struct pids_counts *counts; /* Overall process counts */
|
|
struct pids_stack **stacks; /* Detailed process information */
|
|
};
|
|
.fi
|
|
.in
|
|
|
|
.SS PID ITEMS
|
|
The enum \fIpids_item\fR is used by the functions
|
|
.BR procps_pids_new (3),
|
|
.BR procps_pids_reset "(3) and"
|
|
.BR procps_pids_sort (3).
|
|
The following items can be fetched for a process:
|
|
.TS
|
|
l l l
|
|
---
|
|
lB l l.
|
|
Item Type Description
|
|
PIDS_ADDR_END_CODE ul_int The address below which program text can run
|
|
PIDS_ADDR_KSTK_EIP ul_int Instruction pointer
|
|
PIDS_ADDR_KSTK_ESP ul_int Stack pointer
|
|
PIDS_ADDR_START_CODE ul_int The address above which program text can run
|
|
PIDS_ADDR_START_STACK ul_int Address of the start (bottom) of the stack
|
|
PIDS_ALARM sl_int ??
|
|
PIDS_CGNAME str The name of the control group for the process
|
|
PIDS_CGROUP str List of control groups
|
|
PIDS_CGROUP_V strv List of control groups
|
|
PIDS_CMD str Command name (only the executable name)
|
|
PIDS_CMDLINE str Full command line
|
|
PIDS_CMDLINE_V strv Full command line
|
|
PIDS_ENVIRON str The process environment
|
|
PIDS_ENVIRON_V strv The process environment
|
|
PIDS_EXIT_SIGNAL s_int Signal sent to parent when this process dies
|
|
PIDS_FLAGS ul_int Process flags
|
|
PIDS_FLT_MAJ ul_int Number of major page faults
|
|
PIDS_FLT_MAJ_C ul_int Cumulative major page faults
|
|
PIDS_FLT_MAJ_DELTA ul_int Number of major page faults since last fetch
|
|
PIDS_FLT_MIN ul_int Number of minor page faults
|
|
PIDS_FLT_MIN_C ul_int Culmative minor page faults
|
|
PIDS_FLT_MIN_DELTA ul_int Number of minor page faults since last fetch
|
|
PIDS_ID_EGID u_int Effective group ID number
|
|
PIDS_ID_EGROUP str Effective group name
|
|
PIDS_ID_EUID u_int Effective user ID number
|
|
PIDS_ID_EUSER str Effective user name
|
|
PIDS_ID_FGID u_int File system access group ID number
|
|
PIDS_ID_FGROUP str File system access group name
|
|
PIDS_ID_FUID u_int File system access user ID number
|
|
PIDS_ID_FUSER str File system access user name
|
|
PIDS_ID_PGRP s_int Process group ID, or process ID of group leader
|
|
PIDS_ID_PID s_int Proccess ID number
|
|
PIDS_ID_PPID s_int Process ID number of parent
|
|
PIDS_ID_RGID u_int Real group ID number
|
|
PIDS_ID_RGROUP str Real group name
|
|
PIDS_ID_RUID u_int Real user ID number
|
|
PIDS_ID_RUSER str Real user name
|
|
PIDS_ID_SESSION s_int Session ID number, or process ID of session leader
|
|
PIDS_ID_SGID u_int Saved group ID number
|
|
PIDS_ID_SGROUP str Saved group name
|
|
PIDS_ID_SUID u_int Saved user ID number
|
|
PIDS_ID_SUSER str Saved user nameSaved user name
|
|
PIDS_ID_TGID s_int Thread group ID number, or process ID of thread group leader
|
|
PIDS_ID_TPGID s_int Process ID of foreground process group on the tty
|
|
PIDS_LXCNAME str Linux container name
|
|
PIDS_MEM_CODE sl_int Memory size for code, measured in KiB
|
|
PIDS_MEM_CODE_PGS ul_int Memory size for code, measured in pages
|
|
PIDS_MEM_DATA sl_int Memory size for data + stack, measued in KiB
|
|
PIDS_MEM_DATA_PGS ul_int Memory size for data + stack, measured in pages
|
|
PIDS_MEM_RES sl_int Resident set size, measured in KiB
|
|
PIDS_MEM_RES_PGS ul_int Resident set size, measured in pages
|
|
PIDS_MEM_SHR sl_int Shared memory, measured in KiB
|
|
PIDS_MEM_SHR_PGS ul_int Shared memory, measured in pages
|
|
PIDS_MEM_VIRT sl_int Virtual memory, measured in KiB
|
|
PIDS_MEM_VIRT_PGS ul_int Virtual memory, measured in pages
|
|
PIDS_NICE sl_int Nice value
|
|
PIDS_NLWP s_int Number of lwps (threads) in the process
|
|
PIDS_NS_IPC ul_int Current IPC namespace
|
|
PIDS_NS_MNT ul_int Current mount namespace
|
|
PIDS_NS_NET ul_int Current network namespace
|
|
PIDS_NS_PID ul_int Current PID namespace
|
|
PIDS_NS_USER ul_int Current user namespace
|
|
PIDS_NS_UTS ul_int Current UTC namespace
|
|
PIDS_OOM_ADJ s_int Out Of Memory Adjust
|
|
PIDS_OOM_SCORE s_int Process Out Of Memory Score
|
|
PIDS_PRIORITY s_int Kernel scheduling priority
|
|
PIDS_PROCESSOR u_int Current CPU the process is running on
|
|
PIDS_RSS ul_int Resident set size
|
|
PIDS_RSS_RLIM ul_int Soft limit of RSS in bytes
|
|
PIDS_RTPRIO s_int Realtime priority
|
|
PIDS_SCHED_CLASS s_int Scheduling class, see \fBsched\fR(7)
|
|
PIDS_SD_MACH str Systemd machine name
|
|
PIDS_SD_OUID str Systemd owner user ID
|
|
PIDS_SD_SEAT str Systemd seat
|
|
PIDS_SD_SESS str Systemd session
|
|
PIDS_SD_SLICE str Systemd slice
|
|
PIDS_SD_UNIT str Systemd unit
|
|
PIDS_SD_UUNIT str Systemd user unit
|
|
PIDS_SIGBLOCKED str Bitmap of blocked signals
|
|
PIDS_SIGCATCH str Bitmap of caught signals
|
|
PIDS_SIGIGNORE str Bitmap of ignored signals
|
|
PIDS_SIGNALS str Bitmap of pending signals
|
|
PIDS_SIGPENDING str Bitmap of pending signals
|
|
PIDS_STATE s_ch Process state codes
|
|
PIDS_SUPGIDS str IDs of the supplementary groups
|
|
PIDS_SUPGROUPS str Name of the supplementary groups
|
|
PIDS_TICS_ALL ull_int Sum of user and system time
|
|
PIDS_TICS_ALL_C ull_int Cumulative sum of user and system time
|
|
PIDS_TICS_ALL_DELTA s_int Difference of sum of user and system time since last fetch
|
|
PIDS_TICKS_BLKIO s_int Aggregated block I/O delays
|
|
PIDS_TICS_GUEST ull_int Amount of time process has been in guest mode in ticks
|
|
PIDS_TICS_GUEST_C ull_int Guest time of the process's children
|
|
PIDS_TICS_SYSTEM ull_int Amount of time process has been in system mode in ticks
|
|
PIDS_TICS_SYSTEM_C ull_int System time of the process's children
|
|
PIDS_TICS_USER ull_int Amount of time process has been scheduled in user mode in ticks
|
|
PIDS_TICS_USER_C ull_int ??
|
|
PIDS_TIME_ALL ull_int ??
|
|
PIDS_TIME_ELAPSED ull_int Total seconds since process started
|
|
PIDS_TIME_START ull_int Time the process started
|
|
PIDS_TTY s_int Controlling terminal ID number
|
|
PIDS_TTY_NAME str Controlling terminal name
|
|
PIDS_TTY_NUMBER str Controlling terminal number
|
|
PIDS_VM_DATA ul_int Size of data segment
|
|
PIDS_VM_EXE ul_int Size of text segment
|
|
PIDS_VM_LIB ul_int Shared library code size
|
|
PIDS_VM_LOCK ul_int Locked memory size, see \fBmlock\fR(3)
|
|
PIDS_VM_RSS ul_int Resident set size
|
|
PIDS_VM_RSS_ANON ul_int Resident anonymous memory
|
|
PIDS_VM_RSS_FILE ul_int Resident file mappings
|
|
PIDS_VM_RSS_LOCKED ul_int Locked memory size
|
|
PIDS_VM_RSS_SHARED ul_int Resident shared memory
|
|
PIDS_VM_SIZE ul_int Virtual memory size
|
|
PIDS_VM_STACK ul_int Size of stack segment
|
|
PIDS_VM_SWAP ul_int Swapped out virtual memory size by anonymous pages
|
|
PIDS_VM_USED ul_int Used memory, sum of PIDS_VM_SWAP and PIDS_VM_RSS
|
|
PIDS_VSIZE_PGS ul_int Virtual memory size, measured in pages
|
|
PIDS_WCHAN_NAME str Name of the kernel function in which the process is sleeping.
|
|
.TE
|
|
|
|
.SS PIDS STACK
|
|
The structure \fIstruct pids_stack\fR is a stack or list of information
|
|
about a particular process found in another structure \fIpids_result\fR.
|
|
|
|
The \fIpids_result\fR structure containts the following information:
|
|
.PP
|
|
.in +4n
|
|
.nf
|
|
struct pids_result {
|
|
enum pids_item item;
|
|
union {
|
|
signed char s_ch;
|
|
signed int s_int;
|
|
unsigned int u_int;
|
|
unsigned long ul_int;
|
|
unsigned long long ull_int;
|
|
char *str;
|
|
char **strv;
|
|
} result;
|
|
};
|
|
.fi
|
|
.in
|
|
|
|
To extract the values out of the stack, the
|
|
macro \fBPROCPS_PIDS_VAL\fR is used the following way
|
|
.PP
|
|
.RI \fBPROCPS_PIDS_VAL\fR( index , type , stack )
|
|
where:
|
|
.TP
|
|
.I index
|
|
is the index of the \fIitems\fR defined with the function
|
|
.BR procps_pids_new (3)
|
|
.TP
|
|
.I type
|
|
type for returned value, see type column in \fBPID ITEMS\fR table.
|
|
.TP
|
|
.I stack
|
|
is the stack returned by \fBprocps_pids_get()\fR. It is also can be
|
|
accessed from the \fIpids_fetch\fR structure which is returned by
|
|
\fBprocps_pids_reap\fR.
|
|
.SH SEE ALSO
|
|
.BR mlock (3),
|
|
.BR proc (5),
|
|
.BR sched (7),
|
|
.BR user_namespaces (7).
|